1. Department of Gynaecological Oncology Centre of Gynaecological Oncology Amsterdam Amsterdam the Netherlands
2. Department of Obstetrics and Gynaecology Erasmus University Medical Centre Rotterdam the Netherlands
3. Department of Obstetrics and Gynaecology Radboud University Medical Centre Nijmegen the Netherlands
4. Department of Biometrics Netherlands Cancer Institute – Antoni van Leeuwenhoek Amsterdam the Netherlands
5. Department of Medical Oncology Charing Cross Hospital London UK